Stocks fell on Wall Street Monday, ahead of President Donald Trump’s latest deadline on tariffs. The S&P 500 was 1% lower in afternoon trading. The Dow Jones Industrial Average was down 402 points, or 0.

The Dow Jones Industrial Average fell 1.5 per cent to 43,191.24, while the S&P 500 lost 1.8 per cent to close at 5,849.72. The Nasdaq Composite saw a steeper decline, dropping 2.6 per cent to 18,350.1

Wall Street's main stock indexes tumbled late Monday to end sharply lower after President Donald Trump announced the start of 25% tariffs on Canada and Mexico. Trump said on Monday that there was no chance for Mexico or Canada to prevent 25% tariffs from taking effect on Tuesday.